json Freelancers

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json Job Cost Overview

Typical total cost of Upwork json projects based on completed and fixed-price jobs.

Upwork json Jobs Completed Quarterly

On average, 126 json projects are completed every quarter on Upwork.

126

Time to Complete Upwork json Jobs

Time needed to complete a json project on Upwork.

Average json Freelancer Feedback Score

json Upwork freelancers typically receive a client rating of 4.65.

4.65
Last updated: May 1, 2015
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  1. Csaba Toth

    Csaba Toth

    Senior Mobile Developer for IOS8 (SWIFT) & Android, JSON API, Parse

    Hungary - Last active: 19 hours ago - Tests: 9

    Hello *****Best Quality and Fast Speed******* I am a talented Mobile application developer. I have a good experience of Mobile application and games. Also, I have developed a lot of Desktop applications and web development. Mobile device platform: - iPhone 6 plus, iPhone 6, iPhone 5s, iPhone5, iPhone4s - iPad Air, iPad4, iPad3, iPad mini - Google Nexus 5, Samsung Galaxy S5, S4, S3, HTC One My skill-set: - Native: iOS, Android, Windows8 (Objective-C, Swift, Java, C#), JNI, NDK (C/C++) - Hybrid: PhoneGap, Xamarin, Titanium (HTML5, jQuery Mobile, C#) - Web service: XML/JSON, REST/SOAP - Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Firebase, Twillio, Plivio - Chat & Messaging Engine: XMPP, Jabber, OpenFire, OpenTok WebRTC, Ejabberd, Erlang - Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation - Video/audio streaming, codec: Wowza, Red5, H.323, MPEG-4 - VOIP, Cloud Communication: Twillio, Heroku, Tokbox - Speech recognition, text-to-speech, Siri, OpenEar - HTML5, PHP, ASP, JSP, C# and their frameworks - MySQL, SQLite, Oracle, SQL Server, ODBC - Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo - Google Map, Foursquare, Geolocation, GPS, Open Street Maps - Cocos2D, OpenGL, Corona, Unity3D, Box2D - Game Center, In-App Purchase, RPG server - iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, Testflight - Cloud services: iCloud, Rackspace, Zoho CRM, Salesforce, Azure, AWS, EC2, Dropbox - Mobile Game Genre: Casino Slot machine, Flappy bird, Poker, Chess, RPG, Arcade

    Groups: Application Developers Alliance

    $40.00 /hr
    161 hours
    5.00
  2. Jaskiran K.

    Jaskiran K. Agency Contractor

    iOS (iPhone / iPad / iPod ) expert in Swift / Parse /JSON / XML/Obj C

    India - Last active: 19 hours ago - Tests: 4 - Portfolio: 6

    Absolutely dedicated to creating top notch mobile applications for my clients, I am a skilled programmer with 3.5 years of development experience in developing iphone and Android Mobile applications. With extensive work experience in software development, I firmly believe that the quality is not something that we can be achieved by chance, but it is something that requires great level of intention, sincere efforts, excellent planning, intelligent direction and skillful execution, and that’s what I always try to reflect in my work. _____________________My Technical Skills Swift , Objective-C 2.0 , IPhone iOS-2.X/3.X/4, IDE - XCode-3.X , Interface Builder-3.X, Instruments. I specialize in : - VOIP Technology - iBeacons - Voice and Image Recognition - Maps and GPS tracking - Bluetooth Low Energy - Mobile Games Development - CRM Systems - Social Networks Moreover I have strong experience with: - PHP, OOP, Codeigniter, Zend, Redis; - MySQL, SQLite, MongoDB; - JavaScript, jQuery/UI/Mobile, AngularJS, GoogleMaps etc; - Bootstrap, html/css, CSS3; - HTML5 API; - realtime services.

    Associated with: CS Soft Solutions Pvt. Ltd.

    $18.00 /hr
    1,077 hours
    4.69
  3. Vitaly Sas

    Vitaly Sas

    Expert Android developer

    Belarus - Last active: 5 days ago - Tests: 3 - Portfolio: 2

    - oDesk Verified Mobile Developer See the badge on the right of my profile for more information I specialize in developing Android apps and have over 4 years of experience in commercial app development. I'm looking for a interesting projects to do a really good job. Challenge me and I'll do my best to create high-quality app in order to meet your wishes. I look forward to working with you. Thank you for reviewing my oDesk resume. Best regards, Vitaly Sas.

    Groups: Upwork Verified Mobile Developers

    $33.33 /hr
    1,256 hours
    4.90
  4. Aleksandr Kondrik

    Aleksandr Kondrik

    Senior iOS Developer

    Russia - Last active: 19 hours ago - Tests: 5 - Portfolio: 5

    Hello, With 3+ year of experience in I get expertise in iOS and .Net development. I love develop apps. I like complex and diverse assignments that keep my mind sharp and allow me to constantly learn new things. Have some apps in AppStore: 1) iDrom - mobile client for site www.drom.ru 2) Autoservice 717 - business application for car service

    $33.33 /hr
    194 hours
    5.00
  5. David Mulder

    David Mulder

    Senior Engineer for Mobile APP(IOS&Droid).

    Netherlands - Last active: 19 hours ago - Tests: 10

    Hello, I'm David, highly experienced Mobile Engineer. I have 6+ years of rich experience in Mobile app&Web development. I have been working as a mobile developer since I graduated university. Although android and ios version and device are getting different every year, I'm the person who is eager to learn new tech so learnt new industry technology as soon as it was born. I can start to work on your project right away and I can dedicate my full time on it to complete it asap. My profile at Linkdln: https://www.linkedin.com/in/davidmulder My works at apple store and google play store: https://www.dropbox.com/s/zipmcx7xa7e18es/MobileApps%28IOS_Android%29.pdf?dl=0 Thanks for your reading me fully.

    $55.56 /hr
    3 hours
    4.98
  6. Anton Myagotin

    Anton Myagotin

    Scientific programming

    Russia - Last active: 19 hours ago

    Anton Myagotin was born on 27 September 1979 in Khabarovsk (Russia). He received the Dipl. Ing. degree in electrical engineer-ing in 2002 from the Khabarovsk State Technical University (Russia). He received the master degree in computer science in 2003 from the Saarbrücken University (Germany). From 2003 to 2006, he was a PhD student at Saarbrücken University (Germany). From 2006 to 2008, he was a lecturer in the Russian-German Institute of Computer Science at the Pacific State University (Russia). He received the PhD degree in the field of informational, measuring and control systems in 2011 from Institute of Mechanical Engineering Problems (Russian Academy of Science). Now, he is a dean of foreign student educational programs at the Saint-Petersburg State University of Civil Aviation. His research interests include signal and image processing, foam physics and parallel reconstruction algorithms.

    $38.00 /hr
    1 hours
    4.98
  7. Cristian c. H.

    C# .Net Programmer with experience in MVC,Web-API,AngularJS,Bootstrap

    Romania - Last active: 07/24/2013 - Tests: 1 - Portfolio: 7

    I've been working in the IT development for the past 5 years. Over the last 2 years am working with C# and .Net technologies using MVC and Web-API frameworks for different sites and applications. On the database side I'm using for all projects either Microsoft SQL Server either MongoDB or MySQL. On the client side I have good experience with HTML5, Javascript, AngularJS and Bootstrap (2.x and 3.x). I also have some experience with WPF, w or w/o MVVM framework.

    $37.00 /hr
    46 hours
    4.87
  8. Mahesh J.

    Mahesh J.

    Web Developer/ WebDesigner

    India - Last active: 19 hours ago - Tests: 14 - Portfolio: 3

    I have 3.5 years of Experience in Software Development. I have strong Software development skills with experience in Web Application and Web Development in N-tier Client-Server based Internet technology, intranet portal design/development; Web based data reporting system, workflows, Framework development for Internet application. My experience has stretched across various programming languages including C#, ASP.NET, Ajax and Jquery. I am also well versed in RDBMS concepts. My skill sets include the following: Web Design Skills - HTML - CSS - Bootstrap - Psd To Html - Adobe photo shop cs3 Development Skills & Technologies - ASP.NET - MVC 3 - 4 - 5 - C# - AJAX - Web Service - JavaScript - J query - XML - Angular js - WebApi - Json Database Expertise - SQL Server 2005-2008 - LINQ - Entity Framework Deployment, Troubleshooting at Client server, Data Migration, Fix issues at Client end. Proficient in Web Designing, Web Portals, Web Applications, Parallel Programming

    $5.56 /hr
    604 hours
    5.00
  9. Mohan Krishna

    Mohan Krishna

    Expert API Based Web App Developer

    India - Last active: 2 days ago - Tests: 2

    We might be new to Odesk but we are in the field of freelancing for the past 3 years.We bid only on projects which we are 110% sure of completing and when we are more than happy to give cent percent. We mainly deal with API based Applications and we are experienced in Facebook, YouTube,Twitter, Chrome Extensions, Wikipedia, Google ,Dropbox and on many more Platforms with API.

    $15.00 /hr
    12 hours
    5.00
  10. Andrew J.

    Andrew J.

    Node.js/AngularJS/Express/MongoDB Expert

    Moldova - Last active: 7 days ago - Tests: 5

    Hi Client. My name is Andrew. I have 8 years of experience in javascript development including angularjs and node.js. And also I am strongest at database(administration,programming,management). The skills I can contribute to your projects: ~~~ Javascript : Angular.js ,Node,js,Backbone.js,Express.js,Ember.js D3.js , knockout.js~~~ ~~~ Database : Administration, Management,Programming ~~~ ~~~ Others : PHP,Mysql,Ajax,CSS3,HTML5 ~~~ Thanks.

    $33.33 /hr
    160 hours
    5.00